serpent | assembly language that compiles to EVM code | Compiler library

by ethereum C++ Version: Current License: Non-SPDX

X-Ray Key Features Code Snippets Community Discussions(9)Vulnerabilities Install Support

kandi X-RAY | serpent Summary

serpent is a C++ library typically used in Utilities, Compiler applications. serpent has no bugs, it has no vulnerabilities and it has low support. However serpent has a Non-SPDX License. You can download it from GitHub.

Serpent is an assembly language that compiles to EVM code that is extended with various high-level features. It can be useful for writing code that requires low-level opcode manipulation as well as access to high-level primitives like the ABI.

Support

Quality

Security

License

Reuse

Support

serpent has a low active ecosystem.

It has 323 star(s) with 109 fork(s). There are 37 watchers for this library.

It had no major release in the last 6 months.

There are 41 open issues and 38 have been closed. On average issues are closed in 29 days. There are 23 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of serpent is current.

Quality

serpent has 0 bugs and 0 code smells.

Security

serpent has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

serpent code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

serpent has a Non-SPDX License.

Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

Reuse

serpent releases are not available. You will need to build from source code and install.

Installation instructions are not available. Examples and code snippets are available.

It has 481 lines of code, 41 functions and 5 files.

It has high code complexity. Code complexity directly impacts maintainability of the code.

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serpent Key Features

No Key Features are available at this moment for serpent.

serpent Examples and Code Snippets

No Code Snippets are available at this moment for serpent.

Community Discussions

Trending Discussions on serpent

BeautifulSoup scraping the wrong page

Error applying facet_wrap() in geom_sf() incomplete polygon in ggplot R

Wrapping elements of varying length X times before overflowing

serpent encryption key schedule, how to padd the key to expand to 256bits

How does this Zebra solution in prolog work?

Nginx proxy pass directive: Invalid port in upstream error

JavaScript - Properly Extract Deep Object Properties and Construct New Object

Unable to build Botan for Android on Windows

Using Pyro4 to connect python scripts in separate containers using docker-compose

QUESTION

BeautifulSoup scraping the wrong page

Asked 2022-Mar-18 at 14:38

This didnt work for me. I am scraping the website slider.kz. But when i scrape the website it pulls the html of the main page instead of the specified url. My code

...

ANSWER

Answered 2022-Mar-18 at 13:54

If you use the browser inspector (dev tools - network tab) you can see that, every time you hit "Search" it makes a get request to this kind of url: https://slider.kz/vk_auth.php?q=unravel

The response is a JSON with the results.

So, if you want to use requests you should get this url and then extract the information from the response JSON.

Source https://stackoverflow.com/questions/71527858

QUESTION

Error applying facet_wrap() in geom_sf() incomplete polygon in ggplot R

Asked 2021-Nov-07 at 17:43

I have a shapefile with 7 regions. I have an excel file with data about reptiles in these 7 regions. I merged this shapefile with excel.

Using ggplot I tried to generate facet_wrap() from nome_popular, however the rest of the polygon parts were omitted in each facet created.

My tentative code

shapefile: https://drive.google.com/file/d/1I1m9lBX69zjsdGBg2zfpii5H4VFYE1_0/view?usp=sharing

excel:https://docs.google.com/spreadsheets/d/1eKQWWCAalehTTrUuqUlMPQnSTEZxF--g/edit?usp=sharing&ouid=118442515534677263769&rtpof=true&sd=true

...

ANSWER

Answered 2021-Oct-31 at 05:58

The issue is that with faceting the data is splitted in groups and only the polygons contained in the splitted data will show up.

If you want all regions to be shown in each facet then one option would be to add a base map via second geom_sf layer. In your case + geom_sf(regiao) + geom_sf() should do the job.

As an example I make use of the default example from ?geom_sf:

Source https://stackoverflow.com/questions/69783859

QUESTION

Wrapping elements of varying length X times before overflowing

Asked 2021-Sep-25 at 13:09

I'm attempting to display a simple list of tags of different lengths that would span over 3 lines before overflowing horizontally while being scrollable using React.

The tags contain text, a border, and not much else:

Here's a magnificent drawing to illustrate what I'm trying to render with different amounts of tags:

Here's the code I'm currently using, which has the tags overflowing in the wrong direction, vertically:

...

ANSWER

Answered 2021-Sep-17 at 14:23

Honestly, I think this is gonna be the best you can do if you are looking for a sole CSS only solution. All the tags keep their own width but they have spacing between them to keep it in the flex flow direction. I think align-items: center; looks better than align-items: start; but either works.

Source https://stackoverflow.com/questions/69194293

QUESTION

serpent encryption key schedule, how to padd the key to expand to 256bits

Asked 2021-Jul-06 at 20:56

Im trying to implement the serpent encryption algorithm from scratch as a personal side project, now I am stuck with the key scheduling part of it. according to the only the documentation ,https://www.cl.cam.ac.uk/~rja14/Papers/serpent.pdf, I need to padd the key to 256 so I can start generating the subkeys.

how do I apply padding without relying on a external library.

here is the code that I wrote that I am not a 100 percent sure that will lead me to what I am trying to achieve

...

ANSWER

Answered 2021-Jul-06 at 20:56

Let's have a look at the standard, assuming little endian representation as indicated at the start of the paper:

The user key length is variable, but for the purposes of this submission we fix it at 128, 192 or 256 bits; short keys with less than 256 bits are mapped to full-length keys of 256 bits by appending one “1” bit to the MSB end, followed by as many “0” bits as required to make up 256 bits.

And then have a look at your code:

Source https://stackoverflow.com/questions/68256247

QUESTION

How does this Zebra solution in prolog work?

Asked 2021-Jun-14 at 21:51

zebra_owner(Owner) :-
    houses(Hs),
    member(h(Owner,zebra,_,_,_), Hs).

water_drinker(Drinker) :-
    houses(Hs),
    member(h(Drinker,_,_,water,_), Hs).


houses(Hs) :-
    length(Hs, 5),                                            %  1
    member(h(english,_,_,_,red), Hs),                         %  2
    member(h(spanish,dog,_,_,_), Hs),                         %  3
    member(h(_,_,_,coffee,green), Hs),                        %  4
    member(h(ukrainian,_,_,tea,_), Hs),                       %  5
    adjacent(h(_,_,_,_,green), h(_,_,_,_,white), Hs),         %  6
    member(h(_,snake,winston,_,_), Hs),                       %  7
    member(h(_,_,kool,_,yellow), Hs),                         %  8
    Hs = [_,_,h(_,_,_,milk,_),_,_],                           %  9
    Hs = [h(norwegian,_,_,_,_)|_],                            % 10
    adjacent(h(_,fox,_,_,_), h(_,_,chesterfield,_,_), Hs),        % 11
    adjacent(h(_,_,kool,_,_), h(_,horse,_,_,_), Hs),              % 12
    member(h(_,_,lucky,juice,_), Hs),                         % 13
    member(h(japanese,_,kent,_,_), Hs),                       % 14
    adjacent(h(norwegian,_,_,_,_), h(_,_,_,_,blue), Hs),          % 15
    member(h(_,_,_,water,_), Hs),       % one of them drinks water
    member(h(_,zebra,_,_,_), Hs).       % one of them owns a zebra

adjacent(A, B, Ls) :- append(_, [A,B|_], Ls).
adjacent(A, B, Ls) :- append(_, [B,A|_], Ls).

...

ANSWER

Answered 2021-Jun-14 at 21:46

The houses list Hs is not empty at all, ever. It is created right at the very beginning with

Source https://stackoverflow.com/questions/67975434

QUESTION

Nginx proxy pass directive: Invalid port in upstream error

Asked 2021-May-04 at 09:17

I am doing load balancing with Nginx. Here is my config

...

ANSWER

Answered 2021-May-04 at 09:17

Everything before the @ is userinfo which should be encoded by the browser and included as a separate request header according to RFC 7617.

Nginx is not a browser and cannot do it for you.

You could probably convert that into Base64 and use a proxy_set_header to set the Authorization header.

For example:

Source https://stackoverflow.com/questions/67381093

QUESTION

JavaScript - Properly Extract Deep Object Properties and Construct New Object

Asked 2020-Mar-27 at 04:46

Suppose the following array of objects is returned from an API:

...

ANSWER

Answered 2020-Mar-27 at 04:46

You need an additional guard so:

Source https://stackoverflow.com/questions/60879808

QUESTION

Unable to build Botan for Android on Windows

Asked 2020-Mar-21 at 22:13

I cannot understand how to build Botan for android, according on the instruction here:

$ export CXX=/opt/android-ndk/toolchains/llvm/prebuilt/linux-x86_64/bin/aarch64-linux-android28-clang++

$ ./configure.py --os=android --cc=clang --cpu=arm64

i cannot understand how to use this commands on Windows, also reading previous issues did not help me, can you tell me how did you build this library on windows step-by-step, just your command examples?

I used --cc-bin option of configure.py to specify the path to the compiler, it is considered a solution for windows, but what i have is:

...

ANSWER

Answered 2020-Mar-21 at 22:13

It seems Botan support for building Android binaries on Windows hosts is limited. You will have to use dark magic to make this work.

The build process consists of two phases, the configuration phase and the make phase.

The Android-specific instructions in the documentation you linked do not cover the whole build process, only the configuration phase. For the make phase, you then have to follow the Windows-specific instructions (link).

Configuration phase:

You will need the following binaries, adjust the paths to your machine:

clang++ (note the .cmd at the end): C:\Development\android-ndk-r19c-windows-x86_64\android-ndk-r19c\toolchains\llvm\prebuilt\windows-x86_64\bin\armv7a-linux-androideabi28-clang++.cmd
ar: C:\Development\android-ndk-r19c-windows-x86_64\android-ndk-r19c\toolchains\llvm\prebuilt\windows-x86_64\bin\arm-linux-androideabi-ar.exe

In the Botan folder, run the configure command:

Source https://stackoverflow.com/questions/60788004

QUESTION

Using Pyro4 to connect python scripts in separate containers using docker-compose

Asked 2020-Feb-12 at 17:47

The Problem

I want to use Pyro4 for remote procedure calls across multiple containers using docker-compose. Currently, I am just trying to implement a simplified version of the Pyro4 warehouse example that I have setup to run on different machines, instead of the default localhost, since I am using multiple containers.

I can successfully start the Pyro name server in its own container, but in another container I can not publish the Warehouse class and start Pyro's request loop. I am get the error OSError: [Errno 99] Cannot assign requested address.

My attempt and additional information

I am using balena to deploy this to a Raspberry Pi 3 B+, and I have an environment variable (device variable in balena cloud) "PYRO_HOST=pyro-ns" to set the address of the pyro name server.

I see the pyro name server get created

...

ANSWER

Answered 2020-Feb-12 at 17:47

After some help from the balena forums, I was able to successfully get my Pyro example to run.

Following are my updated and working files for reference.

---

docker-compose.yml

Source https://stackoverflow.com/questions/60116742

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install serpent

You can download it from GitHub.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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